Results 41 to 50 of about 60,818 (316)

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Study on visual acuity curves of the elderly

open access: yesJapan Architectural Review, 2020
This research discusses basic data for lighting design in an aged society. The presented data are the result of an experiment which studied the relation of three parameters: object size (Landolt ring), luminance contrast of target and background, and ...
Michico Iwata, Hiroyuki Kitamoto
doaj   +1 more source

The Influence of a Photometric Distance on Luminance Measurements

open access: yesEnergies, 2023
Luminance measurements are the least frequent of all photometric measurements. This article characterizes and systematizes the various methods of luminance measurement.
Dariusz Czyżewski
doaj   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

Illuminance Reconstruction of Road Lighting in Urban Areas for Efficient and Healthy Lighting Performance Evaluation

open access: yesApplied Sciences, 2018
Big lighting data are required for evaluation of lighting performance and impacts on human beings, environment, and ecology for smart urban lighting. However, traditional approaches of measuring road lighting cannot achieve this aim. We propose a rule-of-
Qi Yao   +3 more
doaj   +1 more source

Analysis of Luminance Contrast Values at Illuminated Pedestrian Crossings in Urban Conditions

open access: yesEnergies, 2023
Lighting pedestrian crossings play an important role in ensuring the safety of pedestrians on the road, especially at night or in conditions of reduced visibility.
Piotr Tomczuk   +2 more
doaj   +1 more source

Luminance and contrast adaptation of the inner retina [PDF]

open access: yes, 2015
Adaptation is a common feature of sensory systems, matching neural activity to the range of inputs from the environment. In the visual system this is of great importance because visual stimulus can change across 9 orders of magnitude.
Santos Caracol Teixeira, Miguel Henriques dos
core   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Luminance pedestal.

open access: yes, 2013
Under each target is a representative luminance profile comparing target luminance to background luminance. A) Luminance profile for Experiment 1: Average luminance of the targets is equal to the luminance of the background.
Jason Forte (352120)   +2 more
core   +1 more source

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